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| 改进的QuEChERS-LC/MS/MS法快速检测蔬菜中7种农药残留 |
| Fast Detection of Seven Kinds of Pesticides Residue in Vegetables by Modified QuEChERS-LC/MS/MS |
| 投稿时间：2013-06-28 |
| DOI： |
| 中文关键词: 农药多残留 样品前处理 液相色谱 串联质谱 |
| 英文关键词: pesticide multi-residue sample pretreatment LC MS/MS |
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| 中文摘要: |
| 研究建立了蔬菜中农药多残留的快速检测QuEChERS-LC/MS/MS方法,优化了实验方案,样品以0.1%乙酸的乙腈(V/V)作为溶剂,Agilent Bond Elut提取试剂盒对样品进行1 min提取后,用C18和Agilent Bond Elut净化试剂盒净化。结果表明:7种农药的平均回收率为72%～127%,相对标准偏差为1.3%～16.3%,检出限为0.004～0.022 mg·kg-1。该方法减少了溶剂用量,缩短了检测时间,每个样品溶剂用量仅为20 mL,每个样品的前处理费用大约为30元,一个实验人员每日可以处理50～60个蔬菜样品,真正实现农残的快速、简便、廉价、有效、灵敏、安全检测。 |
| 英文摘要: |
| In this paper,a fast-detection QuEChERS-LC/MS/MS method was proposed,which could detect 7 kinds of pesticides residues in vegetables. The experiment program was optimized,which the sample extraction by acetonitrile with 0.1% acetic acid in Agilent Bond Elut extraction kit,PSA,and C18 purification in Agilent Bond Elut purification kit of pretreatment method could shorten the detection time and reduce solvent consumption. The consumption solvent for each sample was only 20 mL,an experimenter could handle 50～60 vegetable samples in one day,each sample pretreatment cost was about 30 yuan,which truly achieved quick,easy,cheap,effective,sensitive,safe multiresidue detection. The average recoveries of 7 kinds of pesticides were between 72%～127%,RSD values were between 1.3%～16.3%. The limits of determination were between 0.004～0.022 mg·kg-1. |
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